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Test: Environment Engineering Practices- 1


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25 Questions MCQ Test Civil Engineering SSC JE (Technical) | Test: Environment Engineering Practices- 1

Test: Environment Engineering Practices- 1 for Civil Engineering (CE) 2022 is part of Civil Engineering SSC JE (Technical) preparation. The Test: Environment Engineering Practices- 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Environment Engineering Practices- 1 MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Environment Engineering Practices- 1 below.
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Test: Environment Engineering Practices- 1 - Question 1

Which of the following causes a decrease in per capita consumption?

Test: Environment Engineering Practices- 1 - Question 2

The multiplying factor, as applied to obtain the maximum daily water demand, in relation to the average i.e. per capita daily demand, is

Test: Environment Engineering Practices- 1 - Question 3

If the average daily water consumption of a city is 24000 cum, the peak hourly demand (of the maximum day) will be

Detailed Solution for Test: Environment Engineering Practices- 1 - Question 3

q = 24,000 cum/hr

peak hour demand= 2.7 q = 2.7 ×

 24,000/24=2700  cum/hr

Test: Environment Engineering Practices- 1 - Question 4

The total water requirement of a city is generally assessed on the basis of

Test: Environment Engineering Practices- 1 - Question 5

As compared to geometrical increase method of forecasting population,arithmetical increase method gives

Test: Environment Engineering Practices- 1 - Question 6

The growth of population can be conveniently represented by a curve, which is amenable to mathematical solution. The type of this curve is

Test: Environment Engineering Practices- 1 - Question 7

The average domestic water consumption per capita per day for an Indian city, as per IS 1172-1963, may be taken as

Test: Environment Engineering Practices- 1 - Question 8

The total water consumption per capita per day, including domestic, commercial, and industrial demands, for an average Indian city, as per IS code, may be taken as

Test: Environment Engineering Practices- 1 - Question 9

The population figures in a growing town are as follows :

The predicted population in 2010 by ArithmeticRegression method is

Test: Environment Engineering Practices- 1 - Question 10

The pipe mains carrying water from the source to the reservoir are designed for the

Detailed Solution for Test: Environment Engineering Practices- 1 - Question 10

Recommendations for designing the capacities of different components-

  1. Sources of supply such as wells- Maximum Daily Consumption

  2. Pipe Mains taking the water from the source upto the service reservoir-Maximum Daily Consumption

  3. Filter and other units-Maximum Daily Draft or sometimes the twice the average daily draft

  4. Pumps for lifting the water-Maximum Daily Draft

  5. Distribution System- Maximum Hourly Draft of the maximum day or coincident draft

Test: Environment Engineering Practices- 1 - Question 11

Orthotolidine test is used for determination of

Test: Environment Engineering Practices- 1 - Question 12

In which method of determining total hardness of water is based on the premise that hardness producing substance react with soap and form insoluble compounds before lather is produced?

Detailed Solution for Test: Environment Engineering Practices- 1 - Question 12

In Clark’s method, total hardness is found by determining the standard soap solution required to obtain permanent lather with the water sample of known volume.

Test: Environment Engineering Practices- 1 - Question 13

The per capita water demand include

Test: Environment Engineering Practices- 1 - Question 14

Which one of the following methods gives the best estimate of population growth of a community with limited land area for future expansion ?

Test: Environment Engineering Practices- 1 - Question 15

The “distribution mains” are designed for

Test: Environment Engineering Practices- 1 - Question 16

The formula, which is most appropriate for the design of pressure pipes is

Test: Environment Engineering Practices- 1 - Question 17

The chemical most commonly used to increase speed of sedimentation of sewage is

Test: Environment Engineering Practices- 1 - Question 18

Test: Environment Engineering Practices- 1 - Question 19

The valve, which allows the flow only in one direction, is a

Test: Environment Engineering Practices- 1 - Question 20

Which of the following is known as washout valve?

Detailed Solution for Test: Environment Engineering Practices- 1 - Question 20

Scour valve is known as washout valve. They are either located at the dead ends or at the lowest point in the mains.

Test: Environment Engineering Practices- 1 - Question 21

Scour valves are provided

Test: Environment Engineering Practices- 1 - Question 22

The joint used for joining the plain ends of cast iron pipes, is

Detailed Solution for Test: Environment Engineering Practices- 1 - Question 22

Solution: (c)

Cast Iron pipes possess high strength. They are structurally stronger to withstand tensile, compressive as well as bending stresses. They can be easily acted upon by the acids present in sewer.

Types of Joints:

Bell and Spigot joints: Plain or Reinforced Concrete pipes.

Collar Joints: Concrete Pipes for larger diameter.

Simplex Joints/ Ring tie coupling: Asbestos Cement Pipes

Flexible or Bituminous Joints: Similar to collar joint but instead of cement mortar bitumen is used to make a joint

Mechanical Joint: Used for metallic sewers like Cast Iron, Steel etc. E.g. Dresser Coupling Joint

Test: Environment Engineering Practices- 1 - Question 23

Consider the following statements :

The basic difference between water pipes and sewer pipes is

1. in the material used for the pipes

2. in the pressure of the liquid flow

3. in the suspended solids they carry

Which of these statements is/are correct ?

Test: Environment Engineering Practices- 1 - Question 24

By using economical diameter of water mains, the benefit obtained is in terms of

Test: Environment Engineering Practices- 1 - Question 25

High pH value of water in the pipe does not produce

Detailed Solution for Test: Environment Engineering Practices- 1 - Question 25

PH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.

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